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在Interface Builder中更改UITextView中单个单词的字体

[英]Change font of individual words in UITextView in Interface Builder

原文 2010-12-30 08:42:36 7 3 iphone/ uitextview

Let me apologize in advanced if this question sounds stupid it's so incredibly simple. 如果这个问题听起来很愚蠢，那就让我简单地道歉。 I struggled for 3 hours with another program recently with a problem that was so simple that no one on the internet had even had the problem yet. 我最近在另一个程序上苦苦挣扎了3个小时，这个问题非常简单，以至于互联网上还没有人遇到这个问题。

Anyhow, what I want to do is add a UITextView to my program in Interface builder, copy and paste a block of text, then make the appropriate words bold, and the appropriate words italic. 无论如何，我要执行的操作是在“界面”构建器中的程序中添加UITextView，复制并粘贴文本块，然后将适当的单词加粗，将适当的单词设为斜体。 That's all. 就这样。 I know that if I select the field and hit cmd t, I can change the text of the entire block, however, I can't seem to find a way to only change certain words. 我知道，如果我选择该字段并按cmd t，则可以更改整个块的文本，但是，我似乎无法找到只更改某些单词的方法。 I know it is possible because I have apps on my iPod Touch that do EXACTLY this. 我知道这是有可能的，因为我的iPod Touch上确实有可以执行此操作的应用程序。

Anyhow, I'm hoping there's a way to do this in interface builder since doing it programatically (on the particular project I'm working on) could get very messy very fast. 无论如何，我希望有一种方法可以在界面生成器中完成，因为以编程方式（在我正在研究的特定项目上）以非常快的速度变得非常混乱。

Thank you in advance, and forgive me if I make you rofl or something since I'm so new to all this apple stuff... 在此先感谢您，如果我让您满意，请原谅我，因为我对所有这些苹果东西都很陌生...

3 个解决方案

It's not a stupid question: UITextView s only support a single font, style, size, and color. 这不是一个愚蠢的问题： UITextView仅支持一种字体，样式，大小和颜色。

The easiest solution -- though it may or may not be the best -- is to use a UIWebView with HTML-styled text in it. 最简单的解决方案（尽管不一定是最好的）是使用带有HTML样式的文本的UIWebView 。 A web view seems like a lot of overhead for such a little thing, and it probably is. Web视图似乎要花很多时间来处理这样的小事情，而且可能确实如此。

Nonetheless, until 8 months ago it was just about the only solution (well, I believe you could also use Quartz/Core Graphics previously, but I rarely saw it), and even then it was only on the iPad. 但是，直到8个月前，它才是唯一的解决方案（嗯，我相信您以前也可以使用Quartz / Core Graphics，但我很少看到它），即使那时它也只能在iPad上使用。 With iOS 3.2 or greater you can use Core Text on all iOS devices. 使用iOS 3.2或更高版本，您可以在所有iOS设备上使用Core Text。 Unfortunately there's quite a lot to learn, but it's definitely doable. 不幸的是，有很多东西要学，但这绝对是可行的。

I actually don't know how the overhead of Core Text compares to a UIWebView. 我实际上不知道Core Text的开销与UIWebView相比如何。

也许不是在提问时，但是至少现在，可以通过在属性检查器中将文本设置为“从普通属性”来实现

I don't think what you want is possible with a UITextView . 我认为UITextView不可能实现您想要的一切。 Maybe try CATextLayer 's string property which can be set to an NSAttributedString . 也许尝试一下可以将CATextLayer的string属性设置为NSAttributedString 。